#665DB8#665DB8

#665DB8 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.1% C 0.139 H 285.1°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#665DB8
RGB	rgb(102, 93, 184)
HSL	hsl(246, 39%, 54%)
HSV	hsv(246, 49%, 72%)
CMYK	cmyk(44.6%, 49.5%, 0%, 27.8%)
CIE-LAB	lab(44.40, 27.04, -47.14)
CIE-LCH	lch(44.40, 54.34, 299.84°)
OKLab	oklab(53.15% 0.0362 -0.1338)
OKLCH	oklch(53.15% 0.139 285.1)
XYZ	xyz(18.0431, 14.1134, 47.1116)
Luminance	0.1411 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DB8 #AFB85D

analogous

#5D82B8 #665DB8 #945DB8

triadic

#665DB8 #B8665D #5DB866

tetradic

#665DB8 #B85D82 #AFB85D #5DB894

square

#665DB8 #B85D82 #AFB85D #5DB894

split-complementary

#665DB8 #B8945D #82B85D

monochromatic

#352F6B #4A4296 #665DB8 #8E88CB #B6B2DD

Accessibility & contrast

On white

5.49

#665DB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#665DB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DB8

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DB8	#FFFFFF	#000000	##FFFFFF
##665DB8	1.00	5.49	3.82	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#366CBB

Deuteranopia (green-blind)

#3466B6

Tritanopia (blue-blind)

#4C7082

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665db8;
/* rgb */ color: rgb(102, 93, 184);
/* oklch */ color: oklch(53.1% 0.139 285.1);

Tailwind

colors: {
  custom: {
    50: '#968bce',
    500: '#665db8',
    950: '#000000',
  },
}

SCSS

$custom: #665db8;
$custom-light: #968bce;
$custom-dark: #000000;

JSON

{
  "hex": "#665db8",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 184
  },
  "hsl": {
    "h": 245.934,
    "s": 39.056,
    "l": 54.314
  },
  "oklch": {
    "l": 0.53146,
    "c": 0.13864,
    "h": 285.1
  },
  "luminance": 0.14114
}

Semantic roles & 50–950 ramp

primary

#665DB8

secondary

#C8CCA5

accent

#CF59C3

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665DB8

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →